CaratHunter
Plans
Round|Lab Grown|IGI

31.07ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG730502869

Shape and cutting style on the report: Round brilliant

Certificate IGI LG730502869

Diamond specifications and retailer prices

From £18,316 GBP
As of October 30, 2026
Save £33,896 GBP (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £52,213 GBP at Yorxs · As of October 29, 2026
View at Yorxs

About this 31.07ct lab-grown round diamond

This 31.07ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG730502869 or 730502869. Listed at 8 retailers as of October 29, 2026, with prices from £18,316 to £52,213, a £33,896 spread on the same certified stone. Yorxs lists it at £52,213. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

31.07
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG730502869
Dimensions20.00 × 20.07 × 12.51 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
20.00 mm20.07 mm31.07 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG730502869
Side View
Table 57.0%Crown 34.8°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £18,316 GBP|Low: £18,255 GBP|High: £76,335 GBP|Avg: £38,033 GBP|-32.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
October 30, 2026
Retailer 1£18,316 GBP
Retailer 6£25,654 GBP
Retailer 7£27,260 GBP
Retailer 3£29,457 GBP
Retailer 5£30,695 GBP
Retailer 4£49,616 GBP
Retailer 2£50,334 GBP
Yorxs£52,213 GBP

35 data points across 8 retailers

8 retailers£18,316 GBP to £52,213 GBP

B+
Cheapest Retailer
-
£18,316 GBP
B
Retailer 2
-
£25,654 GBP
$34,373 USD
View
B
Retailer 3
-
£26,673 GBP
$35,739 USD
View
B
Retailer 4
-
£29,457 GBP
$39,469 USD
View
Retailer 5
-
£30,695 GBP
$41,128 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
£49,616 GBP
$66,480 USD
View
B
Retailer 7
-
£50,334 GBP
$67,442 USD
View
Most Expensive
B
Yorxs
616839392 · Oct 29
£52,213 GBP
€66,628 EUR
View
7 more retailers have this diamond
Prices start from £18,316 GBPSave up to £33,896 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
31.07ct Round
£18,316 GBP